Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1498163 | Scripta Materialia | 2015 | 4 Pages |
Abstract
The microstructure dependent deformation behavior of chromium, especially in terms of strain-rate sensitivity (SRS), was studied by means of improved nanoindentation methods as a function of temperature. Cr was investigated in the single crystalline (sx) and ultrafine-grained (ufg) condition. With increasing temperature a decreasing SRS was determined for sx-Cr, while for ufg-Cr a significant increase upon overcoming the critical temperature Tc was measured. This is attributed to the increased importance of dislocation–grain boundary interactions, and a change in the dominating deformation behavior.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Verena Maier, Anton Hohenwarter, Reinhard Pippan, Daniel Kiener,